Star Sapphire - 10.69 ct
1 pcs - 5.24 ct
No. 84113143
30 November, 2023
Algt Colored Stone Identification Report # 81892584
Identification
Species ................................................................................ Natural Zoisite
Variety ............................................................................................ Tanzanite
Description
Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements .............................................. 12.32 x 8.68 x 6.19 mm
Carat Weight ............................................................................. 5.24 Carat
Color ............................................................. Vivid/Deep Blue (Violetish)
Transparency ......................................................................... Transparent
Additional Grading Characteristics
Color Quality Grade ................................................. Fine Color Quality
Suggested Origin ....................................................................... Tanzania
Comments
Tanzanite Is Commonly Heated At Low Temperature To
Improve Its Color. There Is Currently No Scientific Method
Available To Determine Whether This Gemstone Has Been
Enhanced Or Not.
30 November, 2023
Algt Colored Stone Identification Report # 81892584
Identification
Species ................................................................................ Natural Zoisite
Variety ............................................................................................ Tanzanite
Description
Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements .............................................. 12.32 x 8.68 x 6.19 mm
Carat Weight ............................................................................. 5.24 Carat
Color ............................................................. Vivid/Deep Blue (Violetish)
Transparency ......................................................................... Transparent
Additional Grading Characteristics
Color Quality Grade ................................................. Fine Color Quality
Suggested Origin ....................................................................... Tanzania
Comments
Tanzanite Is Commonly Heated At Low Temperature To
Improve Its Color. There Is Currently No Scientific Method
Available To Determine Whether This Gemstone Has Been
Enhanced Or Not.
Nr of stones
1
Total carat weight
5.24
Treatment
Commonly heated with no evidence of treatment
Origin as given on certificate
Tanzania
Sealed by laboratory
No
